444
FNCA52 TJSJ 230730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST SAT MAY 23 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-232000-
SOUTHEAST COASTAL PLAINS-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 70 40
TEMP (24H TREND) 89 (+2) 71 (-3) 88
RH % (24H TREND) 53 (-3) 91 (+5) 53
WIND 20FT/EARLY(MPH) E 17 E 14 E 17
WIND 20FT/LATE(MPH) E 18 NE 11 E 18
MIXING HGT(FT-AGL/MSL)4450 4790
TRANSPORT WND (MPH) E 16 E 18
VENT RATE (KT-FT) 62300 76640
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-232000-
SOUTHERN HILLS-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 70 40
TEMP (24H TREND) 85 (+3) 68 (-4) 84
RH % (24H TREND) 63 (-6) 98 (+6) 65
WIND 20FT/EARLY(MPH) E 14 E 13 E 13
WIND 20FT/LATE(MPH) E 14 NE 12 E 13
MIXING HGT(FT-AGL/MSL)5140 5350
TRANSPORT WND (MPH) E 15 E 16
VENT RATE (KT-FT) 66820 74900
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-232000-
NORTH COASTAL PLAINS-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 87 (0) 71 (-3) 86
RH % (24H TREND) 64 (-2) 97 (+4) 65
WIND 20FT/EARLY(MPH) E 17 E 18 E 17
WIND 20FT/LATE(MPH) E 19 E 13 E 19
MIXING HGT(FT-AGL/MSL)4120 4260
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 61800 68160
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-232000-
NORTHERN HILLS-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 70 40
TEMP (24H TREND) 86 (0) 69 (-2) 85
RH % (24H TREND) 65 (-2) 99 (+3) 68
WIND 20FT/EARLY(MPH) E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 18 E 11 E 17
MIXING HGT(FT-AGL/MSL)4990 5260
TRANSPORT WND (MPH) E 14 E 15
VENT RATE (KT-FT) 59880 68380
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-232000-
WEST COAST-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 70 50
TEMP (24H TREND) 89 (0) 71 (-2) 89
RH % (24H TREND) 62 (-4) 96 (+4) 63
WIND 20FT/EARLY(MPH) E 14 E 13 E 13
WIND 20FT/LATE(MPH) E 14 E 13 E 14
MIXING HGT(FT-AGL/MSL)4860 4870
TRANSPORT WND (MPH) E 10 E 10
VENT RATE (KT-FT) 43740 43830
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-232000-
EASTERN INTERIOR-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 50
TEMP (24H TREND) 85 (0) 69 (-4) 84
RH % (24H TREND) 65 (-2) 99 (+5) 66
WIND 20FT/EARLY(MPH) E 16 E 14 E 14
WIND 20FT/LATE(MPH) E 16 E 14 E 14
MIXING HGT(FT-AGL/MSL)4210 4120
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 63150 61800
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-232000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70 50
TEMP (24H TREND) 82 (+2) 67 (-4) 81
RH % (24H TREND) 69 (-5) 100 (+4) 70
WIND 20FT/EARLY(MPH) E 13 E 11 E 13
WIND 20FT/LATE(MPH) E 13 E 11 E 13
MIXING HGT(FT-AGL/MSL)3640 3460
TRANSPORT WND (MPH) E 20 E 20
VENT RATE (KT-FT) 61880 58820
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-232000-
CENTRAL MOUNTAIN RANGE-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 80 50
TEMP (24H TREND) 84 (+4) 66 (-3) 83
RH % (24H TREND) 68 (-5) 99 (+4) 70
WIND 20FT/EARLY(MPH) E 10 E 10 E 10
WIND 20FT/LATE(MPH) E 10 E 9 E 11
MIXING HGT(FT-AGL/MSL)5710 6190
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 57100 61900
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-232000-
CAYEY MOUNTAIN RANGE-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 80 70 50
TEMP (24H TREND) 82 (+2) 68 (-3) 80
RH % (24H TREND) 70 (-2) 100 (+2) 72
WIND 20FT/EARLY(MPH) E 12 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)3800 3640
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 60800 58240
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-232000-
VIEQUES-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 88 (+1) 74 (-4) 87
RH % (24H TREND) 59 (-4) 92 (+9) 59
WIND 20FT/EARLY(MPH) E 19 E 18 E 19
WIND 20FT/LATE(MPH) E 18 E 18 E 18
MIXING HGT(FT-AGL/MSL)3670 3490
TRANSPORT WND (MPH) E 22 E 22
VENT RATE (KT-FT) 69730 66310
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-232000-
CULEBRA-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50
TEMP (24H TREND) 90 (+2) 76 (-2) 90
RH % (24H TREND) 57 (-6) 91 (+7) 57
WIND 20FT/EARLY(MPH) E 19 E 18 E 19
WIND 20FT/LATE(MPH) E 18 E 18 E 18
MIXING HGT(FT-AGL/MSL)3670 3810
TRANSPORT WND (MPH) E 22 E 23
VENT RATE (KT-FT) 69730 76200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-232000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 60 40
TEMP (24H TREND) 90 (+2) 72 (-3) 90
RH % (24H TREND) 51 (-4) 88 (+5) 51
WIND 20FT/EARLY(MPH) E 19 E 17 E 19
WIND 20FT/LATE(MPH) E 21 E 13 E 21
MIXING HGT(FT-AGL/MSL)4920 4860
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 73800 77760
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-232000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 86 (+1) 74 (-4) 86
RH % (24H TREND) 61 (-6) 91 (+8) 62
WIND 20FT/EARLY(MPH) E 19 E 19 E 19
WIND 20FT/LATE(MPH) E 18 E 19 E 19
MIXING HGT(FT-AGL/MSL)3890 3720
TRANSPORT WND (MPH) E 24 E 24
VENT RATE (KT-FT) 81690 78120
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-232000-
ST CROIX-
330 AM AST SAT MAY 23 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 40
TEMP (24H TREND) 87 (0) 75 (-2) 87
RH % (24H TREND) 63 (-1) 91 (+5) 62
WIND 20FT/EARLY(MPH) E 19 E 18 E 18
WIND 20FT/LATE(MPH) E 18 E 18 E 17
MIXING HGT(FT-AGL/MSL)4510 4310
TRANSPORT WND (MPH) E 22 E 24
VENT RATE (KT-FT) 85690 90510
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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